The reason of orange skin in our lacquering process

In our lacquering process , the organge skin is common and almost all client don't like . so why is the orange skin ?? 

The so-called "orange skin" is the case where the surface roughness of the polished part is high and irregular. The reason for "orange skin" is that the polishing pressure is too large, the polishing time is too long, the mold surface is overheated, and the workpiece is excessively carburized. For example, if polishing is performed with a polishing wheel, the heat generated by the polishing wheel can easily cause "orange skin" on the surface of the workpiece once the polishing time is not properly mastered.

Different types of materials, the degree of difficulty in producing "orange skin" is not the same, the hardness of the material can withstand relatively higher polishing pressure, less likely to produce "orange peel"; and less hardness The workpiece is more prone to over-polishing problems, resulting in "orange peel".

 Measures to eliminate "orange skin"

 In practice, there are some mistakes. Many people choose to improve the surface quality by increasing the polishing pressure and prolonging the polishing time when the surface quality is found to be poor. In fact, sometimes this approach will not only improve the surface quality, but will be counterproductive.

The correct way to remove the "orange skin" is to first remove the defective surface and then polish it with a smaller polishing force using an abrasive tool that is slightly thicker than the previous sand number. Or the workpiece is first subjected to stress relief at a temperature lower than the tempering temperature of 25 degrees Celsius, and then ground with the finest sanding tool until a satisfactory effect is achieved, and finally polished with a lighter force.